US8720236B2 - Padlock - Google Patents
Padlock Download PDFInfo
- Publication number
- US8720236B2 US8720236B2 US11/671,404 US67140407A US8720236B2 US 8720236 B2 US8720236 B2 US 8720236B2 US 67140407 A US67140407 A US 67140407A US 8720236 B2 US8720236 B2 US 8720236B2
- Authority
- US
- United States
- Prior art keywords
- multiple function
- locking mechanism
- shackle
- function lock
- padlock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 230000000717 retained effect Effects 0.000 claims 1
- 230000009977 dual effect Effects 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 description 8
- 238000003754 machining Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B37/00—Permutation or combination locks; Puzzle locks
- E05B37/02—Permutation or combination locks; Puzzle locks with tumbler discs or rings arranged on a single axis, each disc being adjustable independently of the others
- E05B37/025—Permutation or combination locks; Puzzle locks with tumbler discs or rings arranged on a single axis, each disc being adjustable independently of the others in padlocks
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B37/00—Permutation or combination locks; Puzzle locks
- E05B37/0031—Locks with both permutation and key actuation
- E05B37/0034—Locks with both permutation and key actuation actuated by either
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/40—Portable
- Y10T70/413—Padlocks
- Y10T70/415—Combination and/or key-controlled
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/40—Portable
- Y10T70/413—Padlocks
- Y10T70/417—Combination-controlled
- Y10T70/422—Rigid shackle
- Y10T70/424—Sliding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/40—Portable
- Y10T70/413—Padlocks
- Y10T70/487—Parts, accessories, attachments and adjuncts
- Y10T70/491—Shackles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/40—Portable
- Y10T70/413—Padlocks
- Y10T70/487—Parts, accessories, attachments and adjuncts
- Y10T70/493—Protectors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/40—Portable
- Y10T70/413—Padlocks
- Y10T70/487—Parts, accessories, attachments and adjuncts
- Y10T70/493—Protectors
- Y10T70/498—Shields or canopies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7141—Combination and key
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7147—Combination or key
Definitions
- the present invention generally relates to a padlock, particularly to a dual-operational padlock which can be operated by either a key or a combination.
- a padlock is a well known product and is applicable to a variety of articles which may be under an obvious or potential safety risk, to prevent them from being opened.
- a padlock can be used to lock the overlapped pull tabs of the zipper of the luggage such that the zipper cannot be separated.
- conventional padlocks can be divided into two groups, key-operated padlocks and combination-operated padlocks. These two groups of padlocks have their respective advantages: namely, the key-operated padlock avoids the risk that a combination is forgotten; and the combination-operated padlock does not need a key and thus avoids the risk of losing it.
- Yang's U.S. Pat. No. 6,539,761 discloses a padlock combining the functions of a key padlock and a combination padlock. A user thus is able to use either a key or a combination to unlock the padlock. In this case, both locking operations are performed to lock a shackle, and both ends of the shackle are extended into a casing of the padlock and restricted therein.
- the padlock when the padlock is in a locked state, the article hooked by the shackle and restricted by the casing and the shackle cannot be taken off; and when the padlock is in an unlocked state, the shackle axially moves with respect to the casing, and one end of the shackle separates from the casing to form an opening to release the hooked article.
- the shackle generally has a notch formed thereon for engaging with the locking mechanism associated with the shackle; that is, the notch plays a key role in letting the locking mechanism lock the shackle.
- the disadvantages resulted therefrom are that the forming of the notch on the shackle needs more machining processes and decreases the structure strength of the shackle.
- a main objective of the present invention is to provide a padlock which can be operated by either a key or a combination.
- a further objective of the present invention is to provide a padlock which can lock the shackle without the requirement of a notch.
- the padlock in accordance with the present invention comprises: a casing; a shackle having a free first end and a second end, the second end being pivotally connected to the casing; a locking mechanism received within the casing and limiting the axial movement of the second end of the shackle; a latching tube received and operative to be moved within the casing; and a stop member driven by the latching tube so as to be moved between a first position where the first end of the shackle can be rotated by using the second end thereof as a center of rotation, and a second position where the stop member prevents the first end of the shackle from moving, and the shackle and the casing co-define a closed loop.
- FIG. 1 is a perspective view of a padlock in accordance with a first preferred embodiment of the present invention
- FIG. 2 is a partially exploded view of the padlock in accordance with the first preferred embodiment of the present invention
- FIG. 3A and FIG. 3B are schematic views showing the operations of the latching tube shown in FIG. 1 by inserting a key thereinto;
- FIG. 4 is a schematic view showing both parts of the casing of the padlock in accordance with the first preferred embodiment of the present invention
- FIG. 5 is a perspective view showing a part of the casing of the padlock in accordance with the first preferred embodiment of the present invention
- FIG. 6 is a front view of the padlock in accordance with the first preferred embodiment of the present invention.
- FIG. 7 is a sectional view taken alone Line 7 - 7 in FIG. 6 ;
- FIGS. 8A to 8C are schematic views showing the operations of the padlock in accordance with the first preferred embodiment of the present invention, wherein a key is inserted into the latching tube so as to move the latching tube between a first position and a second position to unlock and lock the first end of the shackle;
- FIG. 9 is a partially sectional view of the padlock in accordance with the first preferred embodiment of the present invention, wherein an elastic element is optionally provided for biasing the latching tube toward the first position;
- FIG. 10 is a perspective view of the padlock in accordance with the first preferred embodiment of the present invention, showing the pivotal movement of the first end of the shackle unlocked by using a key;
- FIGS. 11A and 11B are schematic views showing the operations of the padlock in accordance with the first preferred embodiment of the present invention, wherein the dials of the combination locking mechanism are adjusted so as to unlock the first end of the shackle;
- FIG. 12 is a perspective view of the padlock in accordance with the first preferred embodiment of the present invention, showing the pivotal movement of the first end of the shackle unlocked by operating the combination locking mechanism;
- FIG. 13 is a partially sectional view of a padlock in accordance with a second preferred embodiment of the present invention.
- FIGS. 14A and 14B are schematic views showing the operations of a padlock in accordance with a third preferred embodiment of the present invention, wherein a key is inserted into the latching tube so as to move the latching tube between a first position and a second position to unlock and lock the shackle;
- FIG. 15 is a top plan view of the padlock in accordance with the third preferred embodiment of the present invention.
- FIGS. 16A and 16B are perspective views showing the operations of a padlock in accordance with a fourth preferred embodiment of the present invention, wherein a key is inserted into the latching tube so as to move the latching tube between a first position and a second position to unlock and lock the shackle;
- FIGS. 17A and 17B are schematic views showing the operations of a padlock in accordance with a fifth preferred embodiment of the present invention, wherein the latching tube is moved between a first position and a second position to unlock and lock the shackle;
- FIGS. 18A to 18B are schematic views showing the operations of a padlock in accordance with a sixth preferred embodiment of the present invention, wherein the latching tube is moved between a first position and a second position to unlock and lock the shackle;
- FIGS. 19A to 19B are schematic views showing the operations of a padlock in accordance with a seventh preferred embodiment of the present invention, wherein the latching tube is moved between a first position and a second position to unlock and lock the shackle.
- a padlock 1 in accordance with the first preferred embodiment substantially comprises a casing 11 , a shackle 12 , a latching tube 13 , a stop member 14 and a locking mechanism 16 .
- the shackle 12 is in the shape of a U-shaped bar and has a free first end 121 and a second end 122 which is pivotally connected to the casing 11 .
- the latching tube 13 is disposed within the casing 11 .
- the latching tube 13 is a disc tumbler cylinder, but can also be a pin tumbler cylinder or other mechanisms performing the similar functions.
- the latching tube 13 is provided with a plurality of disks 131 , a key hole 132 and a block 133 .
- the disks 131 are received within the tube body with the peripheral edges thereof retractably extending from the circumferential surface of the tube body.
- the block 133 is mounted on the circumferential surface of the tube body and is located above the disks 131 .
- the key hole 132 is provided on the bottom of the tube body for controlling the movements of the disks 131 in a way that when a key K is inserted into the key hole 132 , the peripheral edges of the disks 131 are retracted to be received within the latching tube 13 (see FIG. 3A ); and when the key K is withdrawn from the key hole 132 , the peripheral edges of the disks 131 extend out of the circumferential surface of the latching tube 13 (see FIG. 3B ). Since the latching tube 13 is a conventional member, the detailed structure thereof is not further discussed hereinafter.
- the interior of the casing 11 defines a chamber 111 for receiving the latching tube 13 therein.
- the inner wall of the casing 11 which surrounds the chamber 111 , is formed with a substantially L-shaped slot 113 and a recess 112 below the L-shaped slot 113 .
- the L-shaped slot 113 includes a transverse slot 114 and a longitudinal slot 115 to receive and restrict the block 133 of the latching tube 13 such that it can only move along the L-shaped slot 113 .
- the recess 112 is used to receive the peripheral edges of the disks 131 when they extend from the tube body of the latching tube 13 , so as to position the latching tube 13 .
- the latching tube 13 disengages with the recess 112 of the casing 11 and the block 133 of the latching tube 13 is allowed to move along the transverse slot 114 and the longitudinal slot 115 .
- the stop member 14 is disposed on the top of the latching tube 13 . In the current embodiment, it is fommed integrally with the latching tube 13 but can also be separate from and be driven by the latching tube 13 in accordance with the other embodiments that will be described later. As shown in FIGS. 2 , 3 A and 3 B, the stop member 14 is in the shape of a cylindrical body with the top thereof formed with a hole 141 for receiving the first end 121 of the shackle 12 .
- the locking mechanism 16 is a conventional combination locking mechanism and is used to limit the axial movement of the second end 122 of the shackle 12 (see FIG. 2 ). As shown in FIGS. 11A and 11B , the locking mechanism 16 is received in the casing 11 , at the side opposite to the latching tube 13 , and comprises a plurality of hollow dials 161 with each having an axial groove 162 formed on the inner wall thereof. The second end 122 of the shackle 12 passes through the dials 161 and has a row of axial teeth 123 formed thereon.
- Each tooth 123 corresponds to an axial groove 162 of the dial 161 such that unless all axial grooves 162 of the dials 161 are rotated to align with the axial teeth 123 , the axial movement of the second end 122 of the shackle 12 will be confined by the dials 161 . Further, to avoid the condition that when all axial grooves 162 of the dials 161 align with the axial teeth 123 , the entire shackle 12 falls out of the casing 11 , a neck portion 117 is formed within the casing 11 such that the second end 122 of the shackle 12 can axially move for a certain distance which should be large enough for releasing the first end 121 of the shackle 12 from the stop member 14 .
- the padlock 1 in accordance with the first preferred embodiment of the present invention is constructed (see FIGS. 6 and 7 ).
- FIGS. 6 and 7 when the padlock 1 is in a locked state, where the latching tube 13 is at a second position and the shackle 12 and the casing 11 co-define a closed loop, the block 133 of the latching tube 13 is located at a first end of the transverse slot 114 , the peripheral edges of the disks 131 engage with the recess 112 , and the first end 121 of the shackle 12 is received within the hole 141 formed on the stop member 14 .
- the key K By inserting the key K into the key hole 132 of the latching tube 13 , the peripheral edges of the disks 131 are retracted to be received within the latching tube 13 and are disengaged with the recess 112 of the casing 11 (see FIG. 8A ).
- the key K is turned clockwise to move the block 133 to a second end of the transverse slot 114 , namely, the intersection between the transverse slot 114 and the longitudinal slot 115 (see FIG. 8B ).
- the key K is pulled downward to move the latching tube 13 to the lower end of the longitudinal slot 115 , wherein the latching tube 13 is moved to a first position, the stop member 14 , associated with the latching tube 13 , is separate from the first end 121 of the shackle 12 , and the padlock 1 is in an unlocked state (see FIG. 8C ).
- an elastic element e.g., a spring 15
- a spring 15 is provided within the casing 11 , between the inner upper wall of the casing 11 and the top of the latching tube 13 to bias the latching tube 13 downward.
- FIG. 10 shows a perspective view of the padlock 1 unlocked by the key K. Since the axial movement of the second end 122 of the shackle 12 is limited, the first end 121 of the shackle 12 can only be rotated by using the second end 122 thereof as a center of rotation and an opening is thus formed between the shackle 12 and the casing 11 so as to hook the desired portions of the article to be locked.
- the user To move the padlock 1 back to the locked state, the user first rotates the first end 121 of the shackle 12 to align with the stop member 14 . Further, the key K is pushed upward to move the latching tube 13 upward, until the block 133 of the latching tube 13 presses against the upper end of the longitudinal slot 115 , namely, the intersection between the transverse slot 114 and the longitudinal slot 115 . At this moment, the hole 141 of the stop member 14 engages with the first end 121 of the shackle 12 . The key K is then turned counterclockwise to move the block 133 of the latching tube 13 until it reaches the first end of the transverse slot 114 .
- the key is withdrawn from the key hole 132 of the latching tube 13 and the peripheral edges of the disks 131 extend out of the circumferential surface of the latching tube 13 to engage with the recess 112 of the casing 11 . Accordingly, the latching tube 13 is moved back to the second position and the padlock 1 is again in a locked state.
- FIGS. 11A and 11B The operation of the padlock 1 by means of a combination is described with reference to FIGS. 11A and 11B .
- the hole 141 of the stop member 14 engages with the first end 121 of the shackle 12
- the axial movement of the second end 122 of the shackle 12 is limited by the locking mechanism 16
- the shackle 12 and the casing 11 co-define a closed loop.
- the second end 122 of the shackle 12 can be moved axially until the first end 121 of the shackle 12 is separate from the stop member 14 . Accordingly, the padlock 1 is in an unlocked state.
- FIG. 12 shows a perspective view of the padlock 1 unlocked by the combination, wherein the first end 121 of the shackle 12 can be rotated by using the second end 122 thereof as a center of rotation and an opening is thus formed between the shackle 12 and the casing 11 so as to hook the desired portions of the article to be locked.
- the user To move the padlock 1 back to the locked state, the user first rotates the first end 121 of the shackle 12 to engage it with the hole 141 of the stop member 14 and the axial teeth 123 of the second end 122 of the shackle 12 simultaneously pass through the axial grooves 162 of the dials 161 .
- the dials 161 By adjusting the dials 161 , the axial teeth 123 are not allowed to pass through the axial grooves 162 and the padlock 1 is again in a locked state.
- the padlock in accordance with the first preferred embodiment of the present invention is disclosed. It can be operated by either a key or a combination.
- the stop member 14 and the locking member 16 respectively limits the rotational movement of the first end 121 of the shackle 12 and the axial movement of the second end 122 of the shackle 12 to perform the desired locking function.
- the cost for the additional machining process can be avoided and the structure strength of the shackle is superior to that of the conventional shackle.
- FIG. 13 shows a partially sectional view of a padlock in accordance with a second embodiment of the present invention.
- a hole 116 is formed within the casing 11 ′.
- the locking mechanism 16 ′ comprises a shoulder 124 which protrudes from the second end 122 of the shackle 12 and is pivotally received within the hole 116 of the casing 11 ′ such that the axial movement of the second end 122 of the shackle 12 is limited.
- the padlock in the current embodiment can only function as a key-operated padlock.
- FIGS. 14A and 14B disclose different spatial relationships among a first end 121 of the shackle 12 , a stop member 14 and a latching tube 13 for a padlock 1 in accordance with a third preferred embodiment of the present invention.
- FIG. 15 is further directed to the top view of the padlock 1 .
- the top of the stop member 14 and the top of the casing 11 are in the same plane, and two opposite stop blocks or arms 142 are protruded upward from the top of the stop member 14 with a space formed between arms 142 .
- the latching tube 13 is at a first position (see FIG. 14B ) and the first end 121 of the shackle 12 can pass through the space between two arms 142 and can be freely rotated.
- the key K is turned 90.degree.
- the stop member 14 rotates together with the rotation of the latching tube 13 such that the arms 142 are located on the path of rotation and secure the first end 121 of the shackle 12 (see FIGS. 14A and 15 ) therebetween.
- the padlock 1 is thus in a locked state.
- FIGS. 16A and 16B disclose different spatial relationships among a first end 121 of the shackle 12 , a stop member 14 and a latching tube 13 for a padlock 1 in accordance with a fourth preferred embodiment of the present invention.
- the structure and operation of the padlock 1 according to the current embodiment are substantially the same as those of the padlock shown in FIGS. 14A , 14 B and 15 , except that the top of the stop member 14 is modified to be a cylindrical body formed with a groove 143 which opens to the periphery of the cylindrical body and defines a bottom aligned with the top of the casing 11 .
- the latching tube 13 When the padlock 1 is at the unlocked state, the latching tube 13 is at a first position (see FIG. 16A ) and the first end 121 of the shackle 12 can be freely rotated into and out of the groove 143 .
- the stop member 14 rotates together with the rotation of the latching tube 13 such that the groove 143 is oriented 90.degree. to limit the movement of the first end 121 of the shackle 12 (see FIG. 16B ). The padlock 1 is thus in a locked state.
- FIGS. 17A and 17B disclose a spatial relationship among a first end 121 of the shackle 12 , a stop member 14 and a latching tube 13 for a padlock 1 in accordance with a fifth preferred embodiment of the present invention.
- the stop member 14 is indirectly driven by the latching tube 13 by mean of teeth engagement therebetween.
- the stop member 14 comprises a gear 173 with a bar 144 laterally attached to the center of the gear 173 at an end thereof.
- the other end of the bar 144 is provided with a stop plate 145 for holding the first end 121 of the shackle 12 (see FIG. 17A ), wherein the latching tube 13 is at a second position and the padlock is in a locked state.
- the latching tube 13 is oriented to be movable horizontally.
- a toothed rack 174 further extends from the top of the latching tube 13 and engages with the teeth of the gear 173 .
- the toothed rack 174 drives the gear 173 to rotate counterclockwise such that the bar 144 is also rotated counterclockwise and the stop plate 145 releases the first end 121 of the shackle 12 (see FIG. 17B ). In this position, the padlock 1 is in an unlocked state.
- FIGS. 18A and 18B disclose a spatial relationship among a first end 121 of the shackle 12 , a stop member 14 and a latching tube 13 for a padlock 1 in accordance with a sixth preferred embodiment of the present invention.
- the stop member 14 is directly driven by the latching tube 13 by means of their respective inclined surfaces.
- a corner of the top of the latching tube 13 is formed with an inclined surface 171 .
- a corner of the bottom of the stop member 14 is formed with an inclined surface 172 corresponding to the inclined surface 171 and the top of the stop member 14 is also formed with a hole 141 for holding the first end 121 of the shackle 12 .
- FIG. 18A shows the latching tube 13 in a second position and the padlock 1 is in a locked state.
- the latching tube 13 is oriented to be movable horizontally. As the latching tube 13 moves in a direction denoted by Arrow B toward a first position, the stop member 14 moves downward with the inclined surface 172 thereof sliding along the inclined surface 171 of the latching tube 13 . When the latching tube 13 moves to the first position, the stop member 14 releases the first end 121 of the shackle 12 and the padlock 1 is in an unlocked state.
- FIGS. 19A and 19B disclose a spatial relationship among a first end 121 of the shackle 12 , a stop member 14 and a latching tube 13 for a padlock 1 in accordance with a seventh preferred embodiment of the present invention.
- the stop member 14 is also directly driven by the latching tube 13 by means of their respective inclined surfaces.
- the top of the latching tube 13 is formed with an inclined surface 171 .
- the bottom of the stop member 14 is formed with an inclined surface 172 corresponding to the inclined surface 171 and the top of the stop member 14 is also formed with a hole 141 for holding the first end 121 of the shackle 12 .
- FIG. 19A shows the latching tube 13 in a first position and the padlock 1 is in an unlocked state.
- the latching tube 13 is rotatable along a vertical axis of rotation C. As the latching tube 13 rotates 180.degree. to a second position, the inclined surface 171 of the latching tube 13 pushes the inclined surface 172 of the stop member 14 to move upward such that the first end 121 of the shackle 12 is held by the hole of the stop member 14 and the padlock 1 is in a locked state.
- the present invention provides a padlock having a shackle without a notch, and a padlock is able to position the shackle. Further, the current existing key-operated padlock in the market can be applicable to the present invention to become a dual-operational padlock.
Landscapes
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
Description
Claims (18)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/671,404 US8720236B2 (en) | 2003-05-14 | 2007-02-05 | Padlock |
US11/688,190 US20070157679A1 (en) | 2003-05-14 | 2007-03-19 | Padlock |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW92208756U TW590146U (en) | 2003-05-14 | 2003-05-14 | Padlock structure with hook locking and opening |
TW92208756U | 2003-05-14 | ||
TW092208756 | 2003-05-14 | ||
US10/759,413 US7174756B2 (en) | 2003-05-14 | 2004-01-16 | Padlock |
US11/671,404 US8720236B2 (en) | 2003-05-14 | 2007-02-05 | Padlock |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/759,413 Continuation US7174756B2 (en) | 2003-05-14 | 2004-01-16 | Padlock |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/688,190 Continuation US20070157679A1 (en) | 2003-05-14 | 2007-03-19 | Padlock |
Publications (2)
Publication Number | Publication Date |
---|---|
US20070125141A1 US20070125141A1 (en) | 2007-06-07 |
US8720236B2 true US8720236B2 (en) | 2014-05-13 |
Family
ID=32173927
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/759,413 Expired - Fee Related US7174756B2 (en) | 2003-05-14 | 2004-01-16 | Padlock |
US11/671,404 Expired - Fee Related US8720236B2 (en) | 2003-05-14 | 2007-02-05 | Padlock |
US11/688,190 Abandoned US20070157679A1 (en) | 2003-05-14 | 2007-03-19 | Padlock |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/759,413 Expired - Fee Related US7174756B2 (en) | 2003-05-14 | 2004-01-16 | Padlock |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/688,190 Abandoned US20070157679A1 (en) | 2003-05-14 | 2007-03-19 | Padlock |
Country Status (3)
Country | Link |
---|---|
US (3) | US7174756B2 (en) |
GB (1) | GB2401643B (en) |
TW (1) | TW590146U (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110289988A1 (en) * | 2007-06-14 | 2011-12-01 | Chun Te Yu | Lock having an indicatory lock core |
US8881558B2 (en) | 2003-08-05 | 2014-11-11 | The Eastern Company | Combination and key operated locks with indicators |
US20170009488A1 (en) * | 2015-07-07 | 2017-01-12 | The Sun Lock Company, Ltd. | Padlock with fully integrated dual locking mechanism with reset mechanism |
US20230110118A1 (en) * | 2021-10-08 | 2023-04-13 | Aba Locks International Co., Ltd. | Anti-vandal padlock |
Families Citing this family (59)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWM247655U (en) * | 2003-01-29 | 2004-10-21 | Jiun-De You | Lock specific for security inspection |
TW590146U (en) * | 2003-05-14 | 2004-06-01 | Sinox Co Ltd | Padlock structure with hook locking and opening |
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US20170009488A1 (en) * | 2015-07-07 | 2017-01-12 | The Sun Lock Company, Ltd. | Padlock with fully integrated dual locking mechanism with reset mechanism |
US10221591B2 (en) * | 2015-07-07 | 2019-03-05 | The Sun Lock Company, Ltd. | Padlock with fully integrated dual locking mechanism with reset mechanism |
US20230110118A1 (en) * | 2021-10-08 | 2023-04-13 | Aba Locks International Co., Ltd. | Anti-vandal padlock |
US11866961B2 (en) * | 2021-10-08 | 2024-01-09 | Aba Locks International Co., Ltd. | Anti-vandal padlock |
Also Published As
Publication number | Publication date |
---|---|
US7174756B2 (en) | 2007-02-13 |
GB2401643B (en) | 2006-06-07 |
GB2401643A (en) | 2004-11-17 |
US20040226323A1 (en) | 2004-11-18 |
US20070157679A1 (en) | 2007-07-12 |
TW590146U (en) | 2004-06-01 |
GB0405526D0 (en) | 2004-04-21 |
US20070125141A1 (en) | 2007-06-07 |
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